1 files changed, 18 insertions, 0 deletions
diff --git a/dirmngr/misc.c b/dirmngr/misc.c
index 53d0099d2..93f051c1a 100644
--- a/dirmngr/misc.c
+++ b/dirmngr/misc.c
@@ -619,3 +619,21 @@ armor_data (char **r_string, const void *data, size_t datalen)
   *r_string = buffer;
   return 0;
 }
+
+/* Copy all data from IN to OUT.  */
+gpg_error_t
+copy_stream (estream_t in, estream_t out)
+{
+  char buffer[512];
+  size_t nread;
+
+  while (!es_read (in, buffer, sizeof buffer, &nread))
+    {
+      if (!nread)
+        return 0; /* EOF */
+      if (es_write (out, buffer, nread, NULL))
+        break;
+
+    }
+  return gpg_error_from_syserror ();
+}